Lamp-guard.



UNITED STATES PATENT OFFICE.

EDWARD c. DICKINSON, or EDeiN, ILLINOIS.

LAMP-GUARD.

Specification of Letters Patent.

Patented Jan. 16, 1906.

To aLL whom, it may concern:

Be it known that I, EDWARD O. DICKIN- SON, a citizen of the United States, residing at Elgin, in the county of Kane and State of Illinois, have invented new and useful Imrovements in Electric-Lamp Guards, of which the following is a full, clear, concise, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

My invention relates to improvements in lamp-guards, and has for its object to provide a guard of this character which shall effectively prevent the lamp from being broken by being knocked against or dropped on the floor.

Afurther object is to provide a guard which may be readily manufactured from one or two pieces of material.

In the drawings showing the preferred embodiment of my invention, Figure 1 is an elevation of an electric lamp, showing my guard attached. Fig. 2 is a end view of the same. Fig. 3 is a section on the line 3 3 of Fig. 1. Fig. 4 is a perspective view of a portion of my guard. Fig. 5 is a sectional view of the top ring, showing a modification; and Fig. 6 is a sectional view of a modified form of the bottom ring.

Like numerals refer to like parts throughout the several views of the drawings.

The guard which I have worked out as the preferred embodiment of my invention com prises a frame, preferably formed in two parts 2 and 3, and as the parts are duplicates I shall only describe one of them. The parts are preferably stamped from sheet metal and are formed with a top band 4, from which de pend longitudinal ribs 5. The ribs 5 are preferably bowed outwardly at about their center in order that the frame as a whole may have the same general contour as an electric- 1 light bulb and are preferably formed of flat material, bent at right angles to the lamp, so that the edges of the material form the outer surface of the guard instead of the flat sides. The strips at their lower ends are preferably formed integrally with a lower band 6. The bands when the two parts are joined together form continuous rings at the top and bottom of the guard, and the top ring is adapted to clamp around the lamp-socket 7, a shoulder 8 being formed on the ring which fits over the bead, usually formed on incandescent-lamp sockets, and thereby prevent the guard from slipping from the socket.

, lamp,

Any means may be used for securing the parts together, though preferably I hinge the same together by clips 9, which enter openings in the bands and are bent over, as at 10, to hold them securely in place. In assembling the parts the bands are only fastened on one side, which allows the two parts to be opened to receivethe lamp 11. The

clips on the other side are put in after the lamp has been inserted, and the upper band is securely clamped around the "lamp-socket.

As shown in Fig. 6, one portion 12 of the bottom ring may overlap the other portion 13, the two parts being secured by a rod 15, thereby forming a hingejoint, permitting the two parts of the guard to open from the top to receive the lamp. The two parts forming the top ring may be secured aspreviously described, or, as shown in Fig. 5, openings may be formed in one part 15, into which outwardly-turned portions 16 of the part 17 may be sprung to form a snap-catch. By this construction of a lamp-guard I provide a guard which may be readily and cheaply made by stamping the same from sheet metal. The parts are few and easily assembled, and by reason of the ribs being V made of flat material bent at right angles to the lamp a guard of increased strength is constructed.

By bending the ribs at right angles to the .so that they are arranged in planes passing through the axis of the lamp, the ribs cast a very small shadow and do not obstruct the light.

While I have described the preferred embodiment of my invention, it will be understood that I do not wish to limit myself to this particular structure, as there are various modifications which I may make without departing from the spirit of my invention.

I have illustrated and described my device as being applied to electric lamps; but it will be understood that it is equally applicable to other forms of lamps and also may be used as a guard for gas-jets.

Having described my invention, what I two parts, each part formed from a single piece of sheet metal and having end collar portions and fiat longitudinal ribs formed integral with said collar portions and lying substantially in radial planes passing through the longitudinal axis of the guard.

3. An electric-light-lamp guard formed of two parts, each part being formed from a single piece of sheet metal having end collar portions and fiat longitudinal ribs formed integral with said collar portions and lying in substantially radial planes passing through the longitudinal axis of the guard, and being outwardly bowed, one set of said collar portions being adapted to engage the lamp-socket for holding the guard in position.

In witness whereof I have hereunto subscribed my name in the presence of two witnesses.

EDWARD C. DICKINSON.

Witnesses:

R. C. BURRoUGHs, H. W. NORTON. 

